There are three main types of fractures: simple fractures, which involve a clean break of bone with little surrounding tissue damage; greenstick fractures, where the bone breaks but not completely, commonly seen in infants and children; and oblique fractures, a break along the bone's axis where one end is displaced. Each type has symptoms like pain, swelling, bruising, and limited mobility of the injured area. Treatment involves seeking medical attention, immobilizing the fracture, managing pain, and sometimes surgery to repair more severe fractures.